The number and percentage of pages devoted to various topics in Systematic Zoology are traced from the inception of the journal to the present. The categories used include papers that: (a) are largely descriptive; (b) argue for or against a particular taxonomic philosophy; (c) apply the methods of a particular taxonomic philosophy; (d) are primarily quantitative; (e) discuss nomenclatural problems, and are either theoretical or applied papers in (f) evolutionary theory, (g) phylogeny reconstruction, or (h) biogeography. Changes in proportions of contri- butions in these categories are mapped onto changes in editorship of the journal to see what effects such changes have had on the sorts of papers published. The changes in Editor of primary concern involve the move from the American Museum of Natural History to the University of Kansas in 1963 and the return to the American Museum 10 years later in 1973. (Systematic Zoology; taxonomic philosophy; evolutionary systematics; phenetics; cladistics; numerical taxonomy.) In 1947 at a meeting of the American